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Nitrogen utilisation and metabolism in maize (Zea mays L.) plants under different rates of biochar addition and nitrogen input conditions
Sun, C. X.1; Hao, L.1; Wang, D.1; Li, C.1; Zhang, C.1; Chen, X.1; Fu, J.1; Zhang, Y. L.2
Corresponding AuthorSun, C. X.(caixiasun@mail.neu.edu.cn) ; Zhang, Y. L.(ylzhang@iae.ac.cn)
2019-09-01
Source PublicationPLANT BIOLOGY
ISSN1435-8603
Volume21Issue:5Pages:882-890
AbstractBiochar (BC) application could improve plant nitrogen (N) utilisation and potentially reduce N fertiliser requirements. However, the fate of N in crop-soil systems and the metabolic responses of crops under conditions of BC co-applied with reduced N are not well understood. The urea-N-15 isotope and pot experiments with three BC rates (0%, 5% and 15%; w/w) combined with three N fertiliser levels (100% N, 85% N and 55% N) were conducted for maize. The metabolome, N-15 abundance and gene expression in plants were analysed using nuclear magnetic resonance, gas isotope mass spectrometry and quantitative real-time reverse transcription PCR, respectively. The results showed that recovery of N by maize ranged from 27.4% to 23.6% and decreased as the N application rate decreased (from 100% to 55%) without BC addition, but ranged from 24.6% to 29.4% when BC was added at a rate of 5% and increased as the N application rate decreased. BC addition had major effects on global metabolic profiles and metabolic networks at the metabolomics level as well as on the expression of related genes (zmGS1and zmAS1) and the content of mineral N (NO3-, NO2- and NH4+) in maize seedlings; moreover, the interaction effects of the BC application rates and N fertiliser levels were evident (P <= 0.001). BC addition induced a decrease in the flux toward sugar hydrolysis and maintained homeostasis in the amino acid pool, which was perturbed by reduced N levels; after which the maize plants adapted to the reduced N condition, and the N recovery efficiency ultimately improved with reduced N loss.
KeywordN-15 isotope biochar metabolomics Nitrogen utilisation Zea mays L
Funding OrganizationNational Key Technologies Research and Development Program, China ; National Natural Science Foundation of China ; Science and Technology Program of Liaoning Province, China ; Science and Technology Program of Shenyang City, China
DOI10.1111/plb.12997
Indexed BySCI
Language英语
Funding ProjectNational Key Technologies Research and Development Program, China[2017YFD0200800] ; National Natural Science Foundation of China[31300331] ; Science and Technology Program of Liaoning Province, China[201602260] ; Science and Technology Program of Shenyang City, China[17-231-1-02]
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:000478947900011
PublisherWILEY
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/134807
Collection中国科学院金属研究所
Corresponding AuthorSun, C. X.; Zhang, Y. L.
Affiliation1.Northeastern Univ, Coll Life & Hlth Sci, Shenyang, Liaoning, Peoples R China
2.Chinese Acad Sci, Inst Appl Ecol, Shenyang, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Sun, C. X.,Hao, L.,Wang, D.,et al. Nitrogen utilisation and metabolism in maize (Zea mays L.) plants under different rates of biochar addition and nitrogen input conditions[J]. PLANT BIOLOGY,2019,21(5):882-890.
APA Sun, C. X..,Hao, L..,Wang, D..,Li, C..,Zhang, C..,...&Zhang, Y. L..(2019).Nitrogen utilisation and metabolism in maize (Zea mays L.) plants under different rates of biochar addition and nitrogen input conditions.PLANT BIOLOGY,21(5),882-890.
MLA Sun, C. X.,et al."Nitrogen utilisation and metabolism in maize (Zea mays L.) plants under different rates of biochar addition and nitrogen input conditions".PLANT BIOLOGY 21.5(2019):882-890.
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